Antique radios, Old Time Radios
4242A
| Base |
Jumbo 4-pin bayonet (1918)
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 10 Volts / If 3.25 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
x 210 x 64 mm / x 8.27 x 2.52 inch |
| Weight |
200 g / 7.05 oz |
| Information source |
Babani, International Radio Tube Encyclopaedia p.186 & 187
-- Original-techn. papers.
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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4242A: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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4242A: ITT, electronic tube 1970/71
Anonymous 10 Collector
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